Virtual Server - Moving site around across domains. Issue with open_basedir??

This is probably very trivial but I had to move my site from a .COM domain on MediaTemple to a .ORG domain.

Basically I went through Media Temple Plesk system and created a new .ORG domain, which creates a new mydomain.org/ directory under the file system.

I then just copied over everything from mydomain.com/httpdocs/* to mydomain.org/httpdocs and then made necessary modifications to the settings.php file, basically only changing the cookie domain to .ORG. The database remains the same.

The problem though is everytime I go to my admin screen though on the site I get the following warning:

warning: realpath() [function.realpath]: open_basedir restriction in effect. File(/var/www/vhosts/mydomain.com/httpdocs/tmp) is not within the allowed path(s): (/var/www/vhosts/mydomain.org/httpdocs:/tmp) in /var/www/vhosts/mydomain.org/httpdocs/includes/file.inc on line 190.

So it appears the site is still trying to access the TMP directory under my .com domain when now it's running under .org? How do I fix this or where do I set it? Is it a set variable in the database that needs to be manually changed?

Best,
st.